Whisking, mixing, or similar machine.



No. 722,664. PATENTED MAR. 17,1903.

W. K. & G. S. BAKER-i. WHISKING, MIXING, 0R SIMILAR MACHINE.

APPLIGATION'IILED APR. 26, 1899.

5 SHEETS-SHEET 1.

N0 MODEL.

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rm: 'uonms PETERS co. moroumm. WASHINGTON. n. c.

No. 722,664. PATENTED MAR. 17, 1903.

W. K. & G. S. BAKER. WHISKING, MIXING, 0R SIMILAR MACHINE.

APPLIOATIUH FILED APR. 28, 1899.

6 SHEETS-SHEET 2- N0 MODEL.

No. 722,664. PATEN'IED MAR. 17, 1903.

W. K. & G. S. BAKER.

WHIS KING, MIXING, 0R SIMILAR MACHINE. APPLICATION PILED APR. 2p, 1899.

H0 MODEL. 6 SHEETS-SHEET 3.

- PATENTED MAR. 17, 1903.. W. K. & G. s. BAKER.

WHIS KING, MIXING, OR SIMILAR MACHINE.

APPLICATION FILED APR. 26, 1899.

5 SHEETS-SHEET 4;

10 MODEL.

No. 722,664. v

N0 MODEL.

PATENTED MAR. 17, 1903. W. K. 6: G. S. BAKER.

WHISKING, MIXING, OR SIMILAR MACHINE.

APPLICATION FILED APR. 26, 1899.

5 SHEETS-SHEET 5.

m: uonms virus to. Pnmcxuma, w'summ'au. o. c.

UNITED STATES PATENT OFFICE.

\VILLIAM KING BAKER AND GEORGE SAMUEL BAKER, OF LONDON,

ENGLAND.

WHISKING, MlXING, OR SIMILAR MACHINE.

SPECIFICATION forming part of Letters Patent No. 722,664, dated March17, 1903. Application filed April 26, 1899. Serial No. 714,531. (Nomodel.)

To all whom it may concern.-

Be it known that we,WILLIAMKING BAKER and GEORGE SAMUEL BAKER, subjectsof the Queen of England, residing at London, England, have inventedcertainnew and useful Improvements .in or Relating to Whisking, Mixing,or Similar Machines, (for which we have made application for LettersPatent in Great Britain under No. 4,163, dated February 24:, 1899,) ofwhich the following is a specification.

This invention relates to improvements in single and duplex whisking,mixing, or similar' machines, wherein revolving beaters or Whisks areemployed, and has for its object to facilitate the insertion or removalof the latter into or from the casing of the machine.

A further object of this invention is to insure a thorough mixing of thematerial without the use of stationary blades or concentric bladesworking in opposite directions usually employed in conjunction with therevolving beater.

In carrying out this invention a hanger or holder is adapted to receivethe spindle of the heater in such a manner as to facilitate theinsertion or removal of the same and render possible removal of a beaterfrom the holder and the substitution of a fresh beater therefor without,the necessity of operating any fastening device.

In order to oppose as far as possible the tendency of the material undertreatment to fly centrifugally from the beater-blades, they are disposedtangentially around their spindle, the use of stationary blades or theirequivalent being thereby rendered unnecessary.

In conjunction with the beater device specially-shaped bodies may beemployed adapted to fit in and fill the casing above the space requiredfor the boaters to revolve in. These bodies or fillers have theirsurfaces shaped so that they form with the concave bottom of the casinga complete or nearly complete spherical or globular mixing-chamber. Thematerial is thus to a considerable extent confined to the space sweptout by the heaters in the chamber, and accumulation of the material inthe portions of the casings beyond the reach of the heaters is entirelyobviated.

In the accompanying drawings, Figure l is a side elevation of a duplexmixing-machine according to this invention. Fig. 2 is ahorizontalsection on the line 11 ll of Fig. 1. Fig. 3 is a vertical sectionthrough one of the chambers of the duplex machine, taken through theleft-hand spindle F of said Fig. 1. Fig. 4 is an end view of a beatingdevice, which is shown also in position in the duplex machine abovereferred to. Fig. 5 is a perspective view of a detail of Fig. 3. Fig. 6is a perspective view illustrating a means of mountinga heater in anelastic hanger such as is hereinbefol'e referred to. Fig. 7 is a viewsimilar to Fig. 6, except that the beaters C are helical and of twistedform.

The duplex machine illustrated in the drawings consists of a casin ghaving two intersecting spherical or globular chambers A A and a hopperA, common to both these chambers. Within each chamber is mounted abeating device preferably of such a construction as is hereinafter morefully described. The casing is provided externally with four projectingstuds A and these are supported by jaws B upon the framing or base B ofthe machine, which may be secured to the floor or to a suitable base byscrews or bolts at B The two studs upon one side of the machine arescrew-threaded at their ends, while those on the opposite side haveboltheads A bearing on the outer faces of the jaws. By screwing up thenuts A they and the bolt-heads A are caused to bear hard upon thecontiguous surfaces of the jaws B and thus the casting is securelyclamped to its framing. The boaters preferably ,used with this duplexconstruction are each of the type shown in Figs. 4 and 6. Each beatercomprises two pairs of blades C 0 arranged tangentially to two disks DD, upon which they are mounted. It is arranged that the boaters shallrevolve at equal speeds in opposite directions, and it is thereforenecessary that one be right-handed and the other left-handed, asindicated by dotted lines in Fig. 1, in order that the blades of eachbeater may operate to oppose the centrifugal tendency of the material incontact with it.

The beaters (see Figs. 1 and 2) are geared together by the arrangementof gearing hereinafter described and are so set in relation to eachother that when either is vertical the other shall be horizontal, andthe configuration of each heater is such that the lower portion of aheater stopped in the vertical posi tion extends but slightly beyond thevertical plane containing its axis of rotation, so that it can bewithdrawn vertically from the casing without fouling the adjacent end ofthe companion beater.

The hanger E employed consists of a rectangular frame, one extremitybeing provided with an inwardly-projecting pin E and the other with aninwardly-projecting ring E cut through at E. The former is placed in therecess in the disk D and the ring is caused to enter an annular groovein the disk D. The elasticity of the hanger allows of the extremities EE to be moved apart in releasing or receiving the heating device andalso retains the latter without the aid of fastenings. The heatingdevice is now free to revolve upon the pin E and ring E which serve asbearings.

In order to permit of the communication of motion to the heaters, thegear-wheel spindles F which project into the casing, are provided withdovetail ends F (See Fig. 5.)

The disk D has a correspondingly-shaped groove D capable of being alinedwith the opening in the ring E 4 In order to place a heating device inoperative position in either chamber, the dovetail projection E in thatchamber is brought to the vertical. The hanger is then lowered and theopening E in the ring E engages with said projection F and the beater isturned until its groove D is also brought into engagement with theprojection F Further lowering of the hanger is then prevented by theprojecting portions E coming into contact with similar projections inthe casing.

Suitable vertical guides G for the hangers E Fig. 1, are sometimesemployed to facilitate the insertion and removal of heaters.

The gearing for operating simultaneously the two sets of heaters is bestseen in Fig. 2. Upon the spindles F are secured exactly similar wheels Hgearing with one another. Upon the right-hand spindle is secured asmaller wheel H gearing with a hand-operated wheel H mounted upon asleeve H which revolves freely upon the lefthand spindle. Upon turningthe handle the righthand spindle is driven by the gear-wheels H H and atthe same time an equal and opposite motion is conveyed to the otherspindle through the medium of the wheels H and the heaters are thereforealways maintained in the angular relationship previously referred to.

In the machines illustrated in Figs. 1 and 2 the contents may be pouredfrom the vessel after the mixing operation by loosening the nuts andlifting one end of the vessel by means of the handle K, the pins A atthe other end serving as trunnions.

The gearing (see Figs. 12 and 13) is shown provided with a box orcasing, and in this instance the pins -A pass through the casing. In theoperation of clamping the vessel to the framing the nuts A act upon thejaws B through the intermediary of such casing.

The operation is similar in all the machines herein described. Themixing-chambers are charged with material, and the heaters being placedin position are revolved in the direction indicated by the arrow oneach.

Although fillers and guide-blades are no shown or described withreference to Figs. 1 to 5, it is to be understood that they may beemployed with any machine in conjunction with any design of beater. Itis also obvious that fillers or guide-blades of modified shape might berequired for the duplex machine and they could he made in conjunction ornot with the lid or cover of the vessel, as desired. Holders or framingscommon to a number of vessels might also be employed for duplexmachines.

The blades of the heating devices hereinbefore described are as shownconstructed of an open frame having a suitable number of cross-bars; butit is to be understood that any other type of blade might be employed inthe manner indicated.

We claim 1. In a whisking, mixing or similar machine, the combinationwith a casing, of a plurality of revoluble heaters each consisting of anopen frame arranged tangentially upon disks,hars extending transverselyacross each frame, an elastic hanger for each heater comprisingaloop-handle portion and spring-arms, cooperating projections and eyesconnecting the spring-arms to the beater-disks, a recess in one of thebeater-disks, a driving-spindle and a projection on the end of thespindle engaging with the recess in the beater-disk, substantially asdescribed.

2. In a whisking, mixing or similar machine, the combination with acasing, of two revoluble heaters consisting of open frames, each framebeing arranged tangentially upon and formed integral with two grooveddisks, means for revolving the heaters simultaneously in oppositedirections to each other, bars extending across the frames, atrectangular hanger for each heater havinginwardlyextending pins toengage with the disks at one side of the heaters and inwardly-extendin gprojections engaging with the disks at the other side of the heaterssubstantially as described.

3. In a whisking, mixing or similar ma chine the combination with acasing of two revoluble heaters consisting of open frames each framebeing arranged tangentially upon and formed integral with two grooveddisks, bars extending across the frames, means for simultaneouslyrevolving the heaters at equal speeds in opposite directions to eachother, a rectangular hanger having inwardly-extending pins for the disksat one side of the beaters, inwardly-extending projections on the hangerengaging with the disks at the other side of the heaters,driving-spindles operatively connected together, projections on the endsof the driving-spindles engaging with the grooves in the disks at theother side of the heaters substantially as described.

4. In a whisking, mixing or similar machine, the combination with acasing of two revoluble heaters consisting of open frames, barsextending across the frames, grooved disks upon which the frames arearranged tangentially and formed integral therewith, mechanism forrevolving the frames simultaneously and at equal speeds in oppositedirections to each other, the boaters being so set in relation to eachother that when either is vertical the other shall be horizontal and theconfiguration of each beater being such that the lower portion of thebeater stopped in the vertical position extends but slightly beyond thevertical plane containing its axis of rotation so that it can bewithdrawn vertically from the casing without fouling the adjacent bladeof the companion beater, a rectangular hanger having inwardly-extendingpins for the disks at one side of the beaters, an inwardly-extendingprojection on the hangerengaging with the disks at the other side of theheaters, driving-spindles operatively connected together and projectionson the ends of the driving-spindles engaging with the grooves in thedisks at the other side of the heaters substantially as described.

In testimony whereof we have hereto set our hands in the presence of thetwo subscribing witnesses.

WILLIAM KING BAKER.

, GEORGE SAMUEL BAKER.

Witnesses:

WM. JNo. TENNANT, HARRY B. BRIDGE.

